Muhammad Dirhamsyah

The Dayak Banyadu tribe is located in Engkadu Village, Ngabang District, Landak Regency. They utilize natural products in the form of animals for daily needs such as consumption (protein), traditional rituals, medical, mystical, and commercial needs. Animals can also be used as symbols of art and signs according to local beliefs. The purpose of this study was to obtain data on the types of animals used by the Dayak Banyadu Community for treatment, method of use and processing or use of each type of animal used by the Banyadu Dayak Tribe in Engkadu Village, Ngabang District, Landak Regency. is a survey method, Respondents were selected using snowball sampling technique and data collection using a list of questions. Based on the results of the study, it was found that 15 types of animals were used by the Banyadu Dayak Community as medicine. The parts of the animal's body used for treatment are the whole body, meat, eggs, fangs, genitals, scales, stomach, bile, blood, thorns, feces...

Efficacy wood vinegar produced from wood laban (Vitex pubescens) against Ophiostoma piliferum fungus was evaluated. The objectives of this research to perform in vitro antifungal of wood vinegar from laban wood against O. piliferum. The source of lignocelluloses biomass was carbonization process used three temperature i.e. 350, 400 and 450 °C.  Efficacy of wood vinegar to the fungus carried on PDA (potato dextrose agar) in a Petri dish that has been mixed with the wood vinegar with a concentration of 0, 0.5, 1.0, 1.5, and 2.0 % (v/v). Antifungal test was a factorial 3 by 5 in a completely randomized design. The means were seperated using using Tukey’s test at p = 0.05. All data were analyzed using the SAS softwere (version 8.2, SAS Institute Inc., NC. USA). The test results showed that the pyrolysis suhue effect and concentration of wood vinegar on the inhibition of fungal growth. The higher pyrolysis temperature and concentration the inhibition of fungal growth was increased.Efikas...

PT. PLN (Persero) is the sole manager of the electricity industry in Indonesia which is owned by the Indonesian government in the form of a State-Owned Enterprise. Steam power plant is one of the leading power plants in Indonesia. Aceh Province has one steam power plant located in Nagan Raya Regency and has two generating units with an installed capacity of 2x110 Megawatts. However, a power outage is unavoidable and still often occurs if one of the plants is damaged or damaged. Corrective maintenance activities and overall maintenance is one of the causes of the high frequency of interference or damage, especially in the boiler section. This study aims to determine the proposed maintenance and repair time to achieve a reliability level of up to 80% in every important boiler component. The proposed maintenance and repair time can be obtained based on historical time to failure and time to repair data. Good maintenance and repair time can be assessed based on high reliability values. ...

PT. PLN (Persero) currently uses a lot of coal-based power plants or Steam Power Plants (PLTU) in carrying out its operational activities. Aceh Province has a PLTU located in Nagan Raya Regency and is owned by PT. PLN (Persero). The Nagan Raya power plant has two generating units with an installed capacity of 2x110 Megawatts. The highest frequency of interference or damage experienced by the boiler section and this is very influential on the Nagan Raya PLTU production system. Performance evaluation in terms of reliability is needed to minimize interference or damage. The purpose of this study is to determine the level of reliability using Monte Carlo simulations on each important component of the boiler section. Monte Carlo simulations will be used to predict the time between failure or time to failure (TTF) and time to repair (TTR) so that the level of reliability can be predicted in the future. Monte Carlo simulations basically produce uniformly distributed random numbers (0.1) an...

The community's conventional salt production business is one of the economic drivers of the community. In addition to being able to provide a lot of jobs for people in Indonesia's coastal areas, the people's salt production business is also seen as a way to reduce poverty. Pidie Regency, which is included in the Province of Aceh, is one area that has a wide coastline and can be utilized as a salt farmer business. Pidie is an area that has a salt production business with a total production of 449.05 tons/month. The problem faced in the traditional salt processing business in Pidie District is the unknown level of risk that exists in each salt production process. The purpose of this study is to determine the level of risk in the traditional salt production process using failure mode and effect analysis (FMEA) and probability impact matrix (PIM) in the Saho Adab people's salt business group in Keude Ie Leubeu Village, Kembang Tanjong District, Pidie District. FMEA is a ...